:root{--background:#f7f5f0;--foreground:#2b2a26;--brand:#c0392b;--brand-dark:#96281b;--ink:#333;--grid:#d9c9b6}body{font-family:-apple-system,PingFang SC,Microsoft YaHei,system-ui,sans-serif}.card{background:#fff;border:1px solid #e5ddcf;border-radius:12px;padding:20px}